Write any two activities which require less than one bucket of water.
1 Answers
A bucket is moving in a circular path and what is the minimum velocity at which the water inside the bucket will not spill out
The required velocity is √(gr)
1 Answers 1 views
You spill a bucket of soapy water on a marble floor accidentally. Would it make it easier or more difficult for you to walk on the floor? Why?
It would make it more difficult for us to walk on a soapy floor because layer of soap makes floor smooth. The coating of soapy water reduces the friction and...
1 Answers 1 views
Name one metal and one non-metal that exist in liquid state at room temperature. Also name two metals having melting point less than 310K
Metal: Mercury (Hg); Non-metal: Bromine (Br) Two metals with melting points less than 310K are Cesium (Cs) and Gallium (Ga).
1 Answers 1 views
Write any two activities which require more than a bucket of water.
(i) Washing 10 clothes (ii) Irrigating a crop field
1 Answers 1 views
Boojho took an empty plastic bottle, turned it upside down and dipped its open mouth into a bucket filled with water.
(i) Bubbles of air came out from the bottle. (ii) Some water entered the bottle.
1 Answers 2 views
Water in a bucket is whirled in a vertical circle with a string attached to it.
(c) mg is not greater than mv2/r Explanation : At the top position the weight of the water mg acts downward to bring it down while due to inertia water tries to escape upward...
1 Answers 1 views
Water in a bucket is whirled in a vertical circle with a string attached to it,
(c) mg is not greater than mv2/r Explanation : At the top position the weight of the water mg acts downward to bring it down while due to inertia water tries to...
1 Answers 1 views
Consider the following statements : 1. On the planet Earth, the fresh water available for use amounts to about less than 1% of the total water found.
(c) About 2.75 percent of water is fresh water in earth and about 95% is frozen in glaciers. Less than 1% of the world’s fresh water is readily accessible
1 Answers 3 views
Consider the following statements: 1. If a person looks at a coin which is in a bucket of water,
(a) Refraction is the change in direction of a wave due to a change in its speed. This is most commonly observed when a wave passes from one medium to...
1 Answers 1 views
There are 6 person ; A ,B, C, D, E and F. A has 3 items more than C D has 4 items less than B E has 6 items less than F
(c) A = C + 3, D = B – 4, E = F – 6 C = E + 2, F = D + 3 On adding, we get A =...
1 Answers 27 views